22012111221112 has 16 divisors (see below), whose sum is σ = 41273226286200. Its totient is φ = 11005917544800.

The previous prime is 22012111221071. The next prime is 22012111221259. The reversal of 22012111221112 is 21112211121022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22012111221112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16579062 + ... + 17857477.

Almost surely, 2^{22012111221112} is an apocalyptic number.

It is an amenable number.

22012111221112 is a deficient number, since it is larger than the sum of its proper divisors (19261115065088).

22012111221112 is a wasteful number, since it uses less digits than its factorization.

22012111221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34516446 (or 34516442 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22012111221112 its reverse (21112211121022), we get a palindrome (43124322342134).

The spelling of 22012111221112 in words is "twenty-two trillion, twelve billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twelve".